Quinhydrone CAS#106-34-3
Reliable Redox Indicator – Quinhydrone functions as an effective redox indicator, making it suitable for pH electrodes, electrochemical experiments, and organic synthesis.
High Purity Crystalline Form – Appears as a dark green crystalline solid, providing consistent quality and precise measurement performance in laboratory applications.
Versatile Applications – Can be applied across various scientific and industrial fields, including electrochemistry and organic synthesis, due to its stable 1:1 hydroquinone–benzoquinone complex.
Safe Handling Recommendations – Although light-sensitive, it can be safely stored under cool and dark conditions, ensuring longevity and reliability during use.
Product Description of Quinhydrone (CAS#106-34-3)
Quinhydrone is a dark green crystalline solid with the molecular formula C₁₂H₁₀O₄, representing a 1:1 complex of hydroquinone and benzoquinone. It is primarily used as a redox indicator in pH electrodes, electrochemical studies, and organic synthesis. The compound is light-sensitive and should be stored in cool, dark conditions. Proper protective equipment should be used when handling.
Quinhydrone Chemical Properties
Melting point | 167-172 °C (lit.) |
Boiling point | 285 °C |
Density | 1.32 |
Bulk density | 300kg/m3 |
Refractive index | 1.4270 (estimate) |
Storage temp | Store below +30°C. |
Solubility | 4g/l |
Form | Crystalline Powder |
Color | Dark green |
Specific Gravity | 0.863 (20/4℃) |
Water Solubility | 4 g/L (20 ºC) |
Sensitive | Light Sensitive |
Merck | 14,8058 |
BRN | 3919222 |
Stability | Stable. Incompatible with strong oxidizing agents. |
LogP | 0.644 (est) |
CAS DataBase Reference | 106-34-3(CAS DataBase Reference) |
NIST Chemistry Reference | Quinhydrone(106-34-3) |
EPA Substance Registry System | Quinhydrone (106-34-3) |
Hazard Codes | Xn,N |
Risk Statements | 22-36/37/38-50 |
Safety Statements | 26-36-61-37/39-29 |
RIDADR | UN 2811 6.1/PG 3 |
WGK Germany | 3 |
RTECS | VA4550000 |
TSCA | Yes |
HS Code | 2942 00 00 |
HazardClass | 6.1 |
PackingGroup | III |
Toxicity | LD50 orally in rats: 225 mg/kg (Woodward) |
Product Application of Quinhydrone (CAS#106-34-3)
Quinhydrone is utilized as a redox indicator in pH electrodes, electrochemical experiments, and organic synthesis. It is also applied in analytical chemistry and the preparation of light-sensitive materials.
